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AsteRx-m3 Pro GNSS Receiver

The AsteRx-m3 Pro by Septentrio is a high-performance, ultra-low power GNSS receiver ideal for industrial applications where efficiency and space are critical. It utilizes advanced multi-frequency, multi-constellation GNSS technology and anti-jamming algorithms for exceptional reliability.

Designed for rover applications, it offers seamless integration for high-accuracy positioning, available in single or dual antenna configurations. The AIM+ technology protects against jamming and RF interference, ensuring robust operation.

The receiver delivers RTK positioning with the lowest power consumption in its class, allowing extended operation on a single battery charge. The LOCK+ feature maintains accuracy despite vibrations, while the IONO+ system guards against ionospheric disturbances.

APME+ mitigates multipath issues, enhancing position quality. The receiver includes comprehensive documentation and RxTools software for configuration, monitoring, and data analysis. An intuitive web interface allows easy control from any device, with quality indicators for optimal performance monitoring.


The AsteRx-m3 Pro by Septentrio is a compact, high-performance GNSS receiver designed for demanding industrial applications where power efficiency and space are critical. This ultra-low power receiver leverages cutting-edge multi-frequency, multi-constellation GNSS technology and advanced anti-jamming algorithms to ensure exceptional availability and reliability.

Tailored for rover applications, the AsteRx-m3 Pro offers a seamless integration solution for kinematic applications requiring reliable, high-accuracy positioning. It is available in single or dual antenna configurations, providing high-quality heading and pitch or heading and roll information.

Equipped with AIM+ Advanced Interference Mitigation and Monitoring Technology, the AsteRx-m3 Pro protects against both intentional and unintentional jamming and spoofing through sophisticated sampling and mitigation mechanisms. This technology is particularly beneficial in robotic devices, where neighboring electronics may emit RF radiation that interferes with GNSS signals. AIM+ ensures faster setup times and robust, continuous operation by safeguarding against such interference.

The AsteRx-m3 Pro delivers RTK positioning with the lowest power consumption in its class. Its minimal Size, Weight, and Power (SWaP) profile allows for extended operation on a single battery charge, enhancing field value.

To combat the effects of mechanical vibrations or shocks on satellite tracking, the LOCK+ feature automatically adjusts the receiver’s parameters to maintain position accuracy. Additionally, the IONO+ system provides advanced protection against ionospheric disturbances, ensuring optimal GNSS signal integrity.

The APME+ system effectively mitigates multipath issues caused by reflections from metal and large structures, improving both positioning and measurement quality.

The AsteRx-m3 Pro GPS/GNSS receiver comes with comprehensive documentation for interfaces, commands, and data messages. It includes the RxTools software for receiver configuration, monitoring, data logging, and analysis.

An intuitive web user interface facilitates easy operation and monitoring, allowing users to control the receiver from any mobile device or computer. This web interface also features easy-to-read quality indicators, ideal for monitoring receiver performance during operations.


Features of the AsteRx-m3 Pro GNSS Receiver board

  • All-in-view satellite tracking on 3 frequencies
  • Best-in-class reliable RTK position accuracy (cm-level)
  • Best SWaP on the market (Size, Weight and Power)
  • AIM+  advanced anti-jamming, anti-spoofing technology as part of the GNSS+ Technology Suite
  • Easy-to-integrate rover receiver
  • GNSS heading (optional) available directly from initialization, removes reliance on vehicle dynamics or magnetic sensors

Technical Specifications – AsteRx-m3 Pro GNSS Receiver board

GNSS Signals
GPS: L1 C/A, L1C, L2C, L2 P(Y), L5
Beidou: B1I, B1C, B2a, B2I, B2b, B3I
Galileo: E1, E5a, E5b
QZSS: L1 C/A, L1C/B, L2C, L5
NavIC: L5
Size: 47.5 x 70 x 9.32 mm, 1.87 x 2.75 x 0.36 in
Weight: 27 g/0.952 oz
Input Voltage: 3.3 VDC ± 5%
Operating Temperature: -40°C to +85°C, -40°F to +185°F
Storage Temperature: -55°C to +85°C, -67°F to +185°F
Humidity: 5% to 95% (non-condensing)
Vibration: MIL-STD-810G

AntaRx-Si3 GNSS/INS Smart Antenna Data Sheet

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